EP2612094B1 - Dispositif pour introduire des déchets et/ou des combustibles alternatifs dans l'espace interne d'un groupe - Google Patents

Dispositif pour introduire des déchets et/ou des combustibles alternatifs dans l'espace interne d'un groupe Download PDF

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Publication number
EP2612094B1
EP2612094B1 EP11757410.3A EP11757410A EP2612094B1 EP 2612094 B1 EP2612094 B1 EP 2612094B1 EP 11757410 A EP11757410 A EP 11757410A EP 2612094 B1 EP2612094 B1 EP 2612094B1
Authority
EP
European Patent Office
Prior art keywords
wall part
rotor
interior
unit
part according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP11757410.3A
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German (de)
English (en)
Other versions
EP2612094A1 (fr
Inventor
Beat René MAIER
Werner Voramwald
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Holcim Technology Ltd
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Holcim Technology Ltd
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Filing date
Publication date
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Publication of EP2612094A1 publication Critical patent/EP2612094A1/fr
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Publication of EP2612094B1 publication Critical patent/EP2612094B1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
    • F27B7/32—Arrangement of devices for charging
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00—Hydraulic cements
    • C04B7/36—Manufacture of hydraulic cements in general
    • C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
    • C04B7/44—Burning; Melting
    • C04B7/4407—Treatment or selection of the fuel therefor, e.g. use of hazardous waste as secondary fuel ; Use of particular energy sources, e.g. waste hot gases from other processes
    • C04B7/4423—Waste or refuse used as fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/44—Details; Accessories
    • F23G5/442—Waste feed arrangements
    • F23G5/444—Waste feed arrangements for solid waste
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus
    • F23K3/16—Over-feed arrangements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
    • Y02P40/125—Fuels from renewable energy sources, e.g. waste or biomass

Definitions

  • the invention relates to a wall portion of an aggregate of a clinker production plant with a device for introducing waste materials and / or alternative fuels into the interior of the unit comprising an open to the interior of the unit rotor housing with a rotatable rotor for rotation with the axis of rotation arranged in parallel, radially directed Bars and at least one connected to the rotor housing line for supplying waste materials and / or alternative fuels.
  • a combustion device which contains a grate within a furnace chamber, via which fuels are distributed by means of a Sprinkler-task device is in the GB 701 744 A disclosed.
  • Waste and alternative fuels usually accumulate in different aggregate states and different compositions.
  • the corresponding equipment parts must be adapted to the dimensions of used tires and the respective sensible manner supplied masses of such existing substances.
  • Different solids which are usually in different shapes, require either a specially adapted to the shaping conveyor and Zufareinriehtung or crushing to spend the material as a bulk material at a notedstelle.
  • the chemical composition of the crushed raw material varies relatively widely depending on different Waste materials or different alternative fuel materials.
  • a simplification of the conveying and feeding devices can in principle be achieved in that the starting materials in a uniform form or a uniform state of aggregation being transformed.
  • alternative fuels can be burned or gasified in separate reactors, so that subsequently the desired energy is available in the form of gaseous substances which can be introduced into the clinker production process at a suitable point.
  • Liquid waste can be injected via nozzles.
  • the vast majority of waste materials are usually not directly used in clinker production, if not previously elaborate pretreatments are made.
  • This method has the advantage that the pumpable mass thus formed, containing the waste materials and / or the alternative fuels, can be fed to a relatively simple device for piercing the substances in a clinker production process, this device essentially consisting of a tubular housing with a to the tube axis substantially concentric rotatably mounted and rotatably driven rotor with the space between the rotor shaft and the housing wall sweeping wings, wherein the jacket of the tubular housing a plurality of lines or openings connects and at least one line with the sludge supply and at least one offset in the circumferential direction are arranged.
  • waste or alternative fuels can be both disagglomerated by the wings or blow bars of the rapidly rotating rotor and crushed, the high kinetic energy that is transmitted to the rotor to be introduced to the substances at the same time ensures that substances are injected into the clinker production process at high speed.
  • the device according to this prior art is connected via a Austragskonus to an aggregate of a clinker production process, wherein in the installed position, the supply of slurried waste or alternative fuels from below.
  • a disadvantage of this invention is that form relatively fast stubborn caking of sludge-like masses in operation in the discharge cone, whereby the flow rate decreases.
  • Another object of the present invention is to develop a device as can be seen in the prior art to the effect that the formation of caking, which can hinder the injection of the sludge-like masses into the aggregate of a clinker production process, is avoided.
  • Another object of the present invention is to provide a device that can be easily retrofitted to existing clinker manufacturing plants or easily replaced in case of defects or reaching maximum life.
  • a device of the type mentioned is further developed such that the rotor is at least partially disposed in the wall portion of the wall portion.
  • the design measure according to the invention makes it possible to eliminate the discharge cone which was used in the device according to the prior art to connect the rotor to the interior of the aggregate of the clinker production plant, so that the waste materials and / or alternative fuels which, as in the prior art can be present pumpable form, get through the beating effect of the strips on the rotor directly into the interior of the clinker production plant.
  • Aggregates which can be provided with the wall part according to the invention are, for example, the calciner or other reactors in which alternative fuels are used or implemented.
  • the rotor of the device according to the invention is constructed similar to that according to the teaching of the aforementioned Austrian patent AT 504 452 B1 such that delivery of the materials supplied to the rotor results in a direction transverse to the direction of the axis of rotation.
  • the strips are sufficient in the rotor according to the invention in its radial extent only 5-70 mm to the wall of the rotor housing, as this would lead to considerable resistance and increased wear of the device at the speeds at which the rotor is operated to a sufficient high energy to apply the substances. Such speeds are usually carried out at 300-1200 rpm -1
  • the device according to the invention is suitable for injecting pre-shredded substances which have been pre-shredded to a maximum particle size of 100 mm, preferably a maximum of 80 mm, before they are slurried and subjected to further comminution upon collision.
  • a maximum particle size of 100 mm preferably a maximum of 80 mm
  • the pumpability is readily ensured, with such a particle size offering the possibility of ensuring the final deagglomeration in the area of the feed point by the device according to the invention.
  • the procedure is such that solid waste with waste sludge are subjected together to comminution and homogenization.
  • the wall itself serves as a support for the device for introducing waste materials and / or alternative fuels into the interior of the unit, so that the wall part according to the invention can be prefabricated, whereby a module is included, which carries all the essential components for introducing the substances in the clinker production plant, this module can be easily and quickly replaced or integrated into existing systems in the sequence.
  • the device according to the invention is advantageously further developed such that the rotor has disc-shaped boundary walls normal to the axis of rotation. These disc-shaped boundary walls provide a barrier to the circular segment walls of the rotor housing, so that no or only small amounts of waste and / or alternative fuels, which may be present as a pumpable mass, can deposit on these walls of the housing.
  • At least one line for supplying the waste materials and / or the alternative fuels from above is connected to the rotor housing, the substances to be introduced can passively, i. can only be supplied to the rotor due to gravity, so that expensive pumping devices can be omitted in the vicinity of the respective unit of the clinker production plant.
  • the waste materials or the alternative fuels which are to be deagglomerated with the device according to the invention, comminuted and injected into an aggregate of a clinker production plant, are usually highly abrasive especially at the intended high rotational speeds of the rotor and in particular claim the strips, which as a blow bars serve, to a large extent.
  • the strips are at least partially made of a wear-resistant material. It is conceivable to arrange special components made of wear-resistant material on conventional strips on the rotor in critical areas, to surround the strips with such materials or to manufacture them entirely.
  • the waste or the alternative fuels are introduced with the device according to the invention in a furnace.
  • a suitable refractory material Preferably, therefore, the invention is developed to the effect that the wall part is coated on the side facing the interior of the unit with refractory material to increase the life of the wall part.
  • the substances are injected in the form of a jet in the interior of the aggregate of the clinker production plant.
  • the geometry of this jet is at least substantially conical or truncated pyramid-shaped, at least at the exit from the rotor, so that the wall part is developed such that the refractory material is applied in the area of the rotor with a smaller layer thickness in order to be sufficient To provide clearance for the exit of the jet into the interior of the aggregate of the clinker production plant.
  • the device according to the invention is intended to offer maximum flexibility in terms of the introduced fuels and in particular it is desirable that, for example, when no suitable waste and / or alternative fuels are available, the device according to the invention can be taken out of service. Since in this case the rotor rests and there is no cooling effect by the introduced slurried substances in this area, the invention is further developed to the effect that the open to the interior of the unit region of the rotor housing by means of a sliding closure member from the interior of the unit is separable. Such a closure member is reasonably made of or coated with refractory material.
  • the invention is further developed to the effect that the wall part has guide means for the sliding closure member, wherein an automatic coupling of the operating state of the insertion device with the displacement of the closure member is conceivable.
  • the wall part according to the invention on which the device for introducing waste materials and / or alternative fuels in the form of a rotor is arranged, can be understood as a module which can be easily exchanged or retrofitted.
  • the wall part carries the drive of the rotor, wherein it can preferably also be provided that the wall part has lines for introducing liquids and / or gases into the interior of the unit and / or the rotor housing.
  • the rotor has to be operated at a relatively high speed in order to be able to transfer a sufficiently high energy to the waste and / or alternative fuels to be injected, to deagglomeration, possibly mechanical comminution and furthermore into the respective fuel To cause aggregate.
  • the present invention is further developed in that the rotor to speeds of 300-1200 Umin -1 , preferably 500-1000 Umin -1 and particularly preferably 700 Umin -1 is driven.
  • FIG. 1 a sectional view of the wall part according to the invention
  • Fig. 2 a perspective view of the opening of the rotor housing and the surrounding surrounding this opening of the refractory material
  • Fig. 3 a perspective view of the outside of the wall part according to the present invention.
  • Fig. 1 1 denotes a wall part according to the invention, which consists of a wall region 2 and the rotor housing 3 for receiving the rotor 4.
  • the wall part 1 in this case has one of the respective installation situations on the aggregate of the clinker production plant adapted geometry and can be made flat or curved.
  • the rotor housing 3 In the rotor housing 3 is the rotor 4, which is mounted for rotation about the axis of rotation 5.
  • On the rotor 4 are arranged parallel to the axis of rotation 5 radially directed strips 6, which serve as blow bars.
  • the rotor 4 rotates in the direction of the arrow 9, so that the introduced substances are injected into the interior 10 of the aggregate of the clinker production plant.
  • a deagglomeration and possibly a mechanical comminution of the solid components of a pumpable mass of waste materials and / or alternative fuels is provided.
  • the inside of the unit or the furnace and thus of the wall part 1 is provided with a refractory coating 11, wherein the refractory coating 11 in the region of the mouth of the rotor housing 3 is applied in the interior 10 with a reduced layer thickness to allow the unimpeded ejection of waste or alternative fuels.
  • a slidable in the direction of the double arrow 13 closure member is referred to, which is actuated by unspecified manipulation devices 14, and which protects the rotor 4 in the idle state from the heat in the interior 10 of the aggregate of the clinker production plant.
  • a line 15 liquids and / or gases can be introduced in the direction of the arrow 16, whereby a cleaning pressure wave can be exerted against possible caking and a shearing action on the beam of waste introduced or alternative fuels.
  • an additional line is referred to, which opens into the interior of the rotor housing, and through which, for example cleaning fluids or gases can be introduced.
  • Fig. 2 the mouth 18 of the conduit 7 can be seen, through which the substances to be injected are introduced into the rotor space 8.
  • the substances meet in this area on the strips 6 of the rotor 4, which rotates in the direction of arrow 9.
  • 19 designates disc-shaped boundary walls belonging to the rotor, which are arranged normal to the axis of rotation 5 of the rotor 4 and which prevent the material to be injected from escaping laterally and leading to impurities or caking.
  • the refractory material 11 is formed in the region of the opening of the rotor housing 3 with a reduced layer thickness and in particular substantially funnel-shaped.
  • FIG. 3 an inventive wall part 1 is shown in an external view, it being recognized that not only the components just described can be arranged on the wall part 1 according to the invention, but also that blower units 20 and the drive 21 for the rotor 4 may be fixed on the wall part 1 according to the invention, so that a total of one module results, which can be quickly replaced or easily retrofitted in existing systems.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Gasification And Melting Of Waste (AREA)

Claims (9)

  1. Partie de paroi d'un groupe d'une installation de production de clinker, dotée d'un dispositif destiné à introduire des déchets et/ou des combustibles alternatifs dans l'espace interne du groupe, comprenant un carter de rotor ouvert vers l'espace interne du groupe, pourvu d'un rotor pouvant être entraîné en rotation et présentant des nervures orientées radialement et disposées parallèlement à l'axe de rotation, et au moins un conduit raccordé au carter de rotor pour l'alimentation en déchets et/ou en combustibles alternatifs, caractérisée en ce que le rotor (4) est disposé au moins en partie dans la région de paroi (2) de la partie de paroi (1), la partie de paroi (1) étant revêtue, sur la face orientée vers l'espace interne (10) du groupe, d'un matériau réfractaire (11) et le matériau réfractaire (11) étant appliqué en couche d'épaisseur plus faible dans la région du rotor (4), étant conçu en particulier sous forme d'entonnoir, et la partie de paroi (1) étant réalisée sous forme de module interchangeable et conçue pour l'introduction de masses boueuses.
  2. Partie de paroi selon la revendication 1, caractérisée en ce que le rotor (4) présente des parois de délimitation (19) en forme de disques perpendiculairement à l'axe de rotation (5).
  3. Partie de paroi selon la revendication 1 ou 2, caractérisée en ce que le conduit (7), au moins au nombre de un, d'alimentation en déchets et/ou en combustibles alternatifs est raccordé par le haut au carter de rotor (3).
  4. Partie de paroi selon la revendication 1, 2 ou 3, caractérisée en ce que les nervures (6) sont réalisées au moins partiellement dans un matériau résistant à l'usure.
  5. Partie de paroi selon l'une des revendications 1 à 4, caractérisée en ce que la région du carter de rotor (3) ouverte vers l'espace interne (10) du groupe est séparable de l'espace interne (10) au moyen d'un organe de fermeture (12) coulissant.
  6. Partie de paroi selon l'une des revendications 1 à 5, caractérisée en ce que la partie de paroi (1) présente des moyens de guidage de l'organe de fermeture (12) coulissant.
  7. Partie de paroi selon l'une des revendications 1 à 6, caractérisée en ce que la partie de paroi porte la commande d'entraînement (21) du rotor (4).
  8. Partie de paroi selon l'une des revendications 1 à 7, caractérisée en ce que la partie de paroi (1) présente des conduits (15) pour introduire des liquides et/ou des gaz dans l'espace interne (10) du groupe et/ou du carter de rotor (3).
  9. Partie de paroi selon l'une des revendications 1 à 8, caractérisée en ce que le rotor (4) peut être entraîné à des vitesses de rotation de 300 à 1200 tr.min-1, de préférence de 500 à 1000 tr.min-1, et de manière particulièrement préférée de 700 tr.min-1.
EP11757410.3A 2010-09-02 2011-07-21 Dispositif pour introduire des déchets et/ou des combustibles alternatifs dans l'espace interne d'un groupe Active EP2612094B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0147310A AT510029B1 (de) 2010-09-02 2010-09-02 Vorrichtung zum einbringen von abfallstoffen und/oder alternativen brennstoffen in den innenraum eines aggregats
PCT/IB2011/001704 WO2012028912A1 (fr) 2010-09-02 2011-07-21 Dispositif pour introduire des déchets et/ou des combustibles alternatifs dans l'espace interne d'un groupe

Publications (2)

Publication Number Publication Date
EP2612094A1 EP2612094A1 (fr) 2013-07-10
EP2612094B1 true EP2612094B1 (fr) 2014-08-27

Family

ID=44651871

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11757410.3A Active EP2612094B1 (fr) 2010-09-02 2011-07-21 Dispositif pour introduire des déchets et/ou des combustibles alternatifs dans l'espace interne d'un groupe

Country Status (8)

Country Link
EP (1) EP2612094B1 (fr)
AR (1) AR084712A1 (fr)
AT (1) AT510029B1 (fr)
BR (1) BR112013005112B1 (fr)
ES (1) ES2509716T3 (fr)
MX (1) MX2013002505A (fr)
RU (1) RU2566105C2 (fr)
WO (1) WO2012028912A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10357015B2 (en) 2011-04-28 2019-07-23 Technologies Holdings Corp. Robotic arm with double grabber and method of operation

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE84117C (fr) *
US2228751A (en) * 1937-11-15 1941-01-14 Wm Bros Boiler & Mfg Company Stoker
US2386336A (en) * 1941-06-12 1945-10-09 Westinghouse Electric Corp Combustion apparatus
GB701744A (en) * 1949-09-02 1953-12-30 Babcock & Wilcox Ltd Improvements in or relating to combustion apparatus
US2763220A (en) * 1950-01-23 1956-09-18 Steinmueller Gmbh L & C Firing plant
US4326469A (en) * 1979-11-02 1982-04-27 Detroit Stoker Company Multi-fuel feeder distributor
RU2097666C1 (ru) * 1993-10-06 1997-11-27 Акционерное общество открытого типа "Волгоцеммаш" Устройство загрузочного конца вращающейся печи
BRPI0611427A2 (pt) * 2005-05-11 2010-09-08 Scs Technology Verfahrenstechn dispositivo para alimentação de combustìveis alternativos em um forno giratório e método para alimentação de tais combustìveis alternativos e/ou produtos de detrito
US7762199B2 (en) * 2005-12-22 2010-07-27 Alstom Technology Ltd Frame seal for a solid fuel distributor
AT504452B1 (de) * 2006-10-19 2008-08-15 Holcim Ltd Verfahren zum einbringen von abfallstoffen und/oder alternativen brennstoffen in ein klinkerherstellungsverfahren sowie vorrichtung zur durchführung dieses verfahrens

Also Published As

Publication number Publication date
AT510029A4 (de) 2012-01-15
EP2612094A1 (fr) 2013-07-10
WO2012028912A1 (fr) 2012-03-08
MX2013002505A (es) 2013-04-29
AR084712A1 (es) 2013-06-05
BR112013005112B1 (pt) 2018-02-06
RU2566105C2 (ru) 2015-10-20
AT510029B1 (de) 2012-01-15
RU2013114471A (ru) 2014-10-10
BR112013005112A2 (pt) 2016-05-03
ES2509716T3 (es) 2014-10-17

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